Enzymes like pepsin, trypsin, chymotrypsin, aminotrypsin, peptidase etc. digest protein food to produce amino acids. Enzymes like tyalin, amylase, maltase, isomaltase, lactase etc. digest carbohydrates and convert them into glucose. Enzymes like lipase, phospholipase, lecithinase, cholesterol esterase, monoglyceridase etc. digest lipids to produce fatty acids and glycerol.